71842763 has 4 divisors (see below), whose sum is σ = 71861928. Its totient is φ = 71823600.

The previous prime is 71842753. The next prime is 71842769. The reversal of 71842763 is 36724817.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36724817 = 29 ⋅1266373.

It is a cyclic number.

It is not a de Polignac number, because 71842763 - 2¹⁰ = 71841739 is a prime.

It is a super-2 number, since 2×71842763² = 10322765190948338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71842769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1913 + ... + 12138.

It is an arithmetic number, because the mean of its divisors is an integer number (17965482).

Almost surely, 2^71842763 is an apocalyptic number.

71842763 is a deficient number, since it is larger than the sum of its proper divisors (19165).

71842763 is a wasteful number, since it uses less digits than its factorization.

71842763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19164.

The product of its digits is 56448, while the sum is 38.

The square root of 71842763 is about 8476.0110311396. The cubic root of 71842763 is about 415.7137048725.

The spelling of 71842763 in words is "seventy-one million, eight hundred forty-two thousand, seven hundred sixty-three".